On May 4, 1976, a spacecraft resembling a disco ball entered orbit almost 3,700 miles (6,000 kilometers) above Earth. This shiny, two‑foot‑wide (60‑centimeter) sphere called the Laser Geodynamics Satellite, or LAGEOS, is covered with 426 retroreflectors—small mirrored prisms designed to bounce laser light directly back to where it came from. Beneath its aluminum exterior sits […]
The Spanish-Portuguese Assembly of Geodesy and Geophysics meets every two years alternatively between the two countries, Spain and Portugal. Throughout the different editions, the assembly has consolidated a forum for research in the fields of Geodesy, Seismology, Meteorology, Geomagnetism, Hydrology, Oceanography, Volcanology, Cryospheric Sciences and Applied Geophysics, and it has given continu…
